W i l l i



I 4 w. ROBINSON; 1 ELECTROMAGNETIC GATB'AND SIGNAL APPARATUS FOR RAILROADS.

ti sw It L11;attes 1 u s -o t; yo s R 091 N, in tr [YO n K;

L Letters Patent No. 105,

nurnovsmennnr sesame-emo uments. earn Ann SIGNAL Arsenic-res sonnear- Elie-Schedule r eferredtoj in these Letters Patent we. making pesto f rheeame To all whom it may concern."

Be it known that I, WILLIAM;ROBINSON, oi- Brook lyn, in'the county of Kings and State of New York, haveinvented a new and useful Improvement in Electra-Magnetic GaiteIand vSignal Apparatus, of which the following is'a full,clear, and exact description, reference being hadtothe accompanying drawing forming part ,of this specification, and in which- Figure 1 represents 'a' view in elevation of an elec- "tro-mag'netic gate and signal apparatus, constructed in accordance with myimprovement as applied to a lineof railroad;

Figure ,2, a plan of the szune';t.and .Figure 3,' a. modifica ion ofthe'signal used. Similar letters of reference indicate corresponding parts. r l

My invention has for its object the o eration Lutomatically, by the: passage or approach of a vehicle, of a gate or signal, which may either be visible 01' audibio, and causingthe-same to cease or readjust themselves out of position after the vehicle has passed by means of circuitlbreakers and closers connected with" abattery or batteries. v i

Such electro- 1nagnetic gate orsignalapparatus it is mainiy designed to use at railroad" crossings, ,or elsewhere, o'ua lineof railroad, but it may be used wherecverthesame isfound suitable. Theimproveufent embraces novel means or combinationsand arrangement of devices for accomplishing the results. specified, including peculiarities 0f construction in certain of thederices, whereby a uniform and easy action :is obtained,andti|e necessary power of the magnets and battelies reduced. Referring to the accompanying drawing- Arepresents the. track of ali'ne otraih'bad, andv B, a gate-or signal, which may be placed at a'eross- =ing thereon, or elsewhere; i h In further des'cription,it will sufilce to'rei'er'to'B as a ate; i r

This gate is fastened to apivot-pin, a, to which is secured aprojection or lever, b, that serves-to carrya partially balancing weight,

The lever bis so shapdor. arranged, relatively to the gate, that, asv'tlielatter descends-and its outer end is'carried away from the center of gravity, the weight isjthrowni away from the center of the pivot. in the!- cpposite direetion,-and the counterbalancing action of the weight'thu's' made uniform, or nearly so, throughout the throw of t the gate, so that the gate descends with a steady and nuiibrna motion. s .The lever D, which aotnates the gate by'the ap breach of the armature E to the magnets F, is equivalently connected by levero and cord or chain 12 with the pivot-a," so that the leverage lift bythe armature diminishes as the gt mompletes its descent, the chaintheu working closer..t0 the pivot as the armature approaches the magnets, thereby contributing to uniiornrity in the action, and whereby less powerful magnets and batteries sufliee.

G is a circuit-closer, and v --H, a circuit-breaker, arranged at a suitable distance apart, in eontignity to the rails, for the approaching or passing train to operate the signal or gate,

, I and l are the-wires from the battery, and which connect with the magnets F and J.

Supposing the train to lie-traveling in direction of the arrow x, it is caused to strnre a lever, e, which, operating on a secondary lever, f, operates the lever" armature K, to bring it in contactwith the magnets J', and by contact at its opposite end with points g, closing the circuit. I .-.1n thus closing the circuit, the gate B is shut down by the action of the magnets 1 on the armature E, and the gate remains shut till the circuitis broken by the passing train, by the armature K remaining in contact with the 'inaguets J. V "'*:When' the circuit is broken,qa spring, it, draws the, armature K away from the magnets J, and the circuit is-left or keptopen.

VI The lever tof the circuit-breaker is kept in contact with points it, to insure the'cireuit being closed when ever the armature K is in contactwith the magnets J i This may beefiected' by a spring, I, applied to said ever.

To break the circuit and raise. the gate or remove or change the signal, the train having passed the gate or signal, presses on the lever-i, and relieves 'it from contact with the pointsk 1 x v Tl s breaking of the circuit by the action of the lever 0' is only momentary, but the instant it occurs the spring It draws the armature K from the magnets J, thereby leaving the circuit open for the next train, andgiving time for the-automatic raising of the gate by the action of its weight, the circuit remaining broken only at the pointsg. When the train is moving in an opposite directionto' the arrow 2:, itis made to first act upo'n a lever, 121, connected with the circuit-closer G, which lever operates upon a rod, 11:, .to throw the leverf out-oi gear with the lever :e, so that the train in passing the lever e, will fail, when depressing it, to close the circuit by the absenceoi' action on the armature K; s This} necesszu when the train has passed the gate'bn come to theci'rcuit-close' r beyond.

The lever f is' returned .to its normal position or connection with theiever e bya spring, 0.

Instead of the gamer signal B, a colored. disk or signal, 13, capable oi illumination, if desired, may be nsed, snd the same b'similarly hung and operated'as l the gate 13.. t

circn What is here elnimed,anc1 desired to be secured by closer, as to continue the action of said circuit-closer,

substantially as herein described,

2. Ti combination of the circuit-closer G with the t-licaker H and gate or signal, substantially as desciibei, and whereby, on the opening of the circuit by t is circuit-breaker, the circuit-closer is released and z i l to keep open the circuit till it is again closed auto: i 31 y by the oircnit-eloser, essentially as hereinset I b l 3. The :1 f of the circuit-closer, so hung or arranged as to be thrown out of working position by a vehicle or train passing in the one direction and afterwm'd returning to its normal position for control of the armature :nni circnit-closl2r by a vehicle or train moving in. the opposite direction, substantially as herein set forth.

4. lhe combination of the levers e f, the spring a, the rod 12, and the lever m, with the armature ,K of the circuit-closer.

5. The arrangement, relatively to the gate or signal B and its pivot a, of the weight 0 angl projection or lever I), substantially as and for the purpose heroin set forth.

6. The arrangement, relatively to the gate or signo.1 B and its axis a, of the projection or lever 0, with its link, chain, or coral d, and lover I), in eonneotion with the armature E, substantially as and for the purpose or purposes herein described.

' WM. ROBINSON. Witnesses JAS. Romnson, \VM, J Imus. 

